This is a minor update to the DenyHosts 3.x series. This release fixes a bug when moving between Python 2 and Python 3 environments. DenyHosts should now work equally well under either version of Python.
A new check has been added to confirm IP addresses retrieved from the security log are valid.
DenyHosts will now (optionally) check for break-in attacks against IMAP services such as Dovecot.
A new dependency has been added, the Python ipaddr library is now a run-time requirement.